Not only has this subject been long associated with the ideas of thinking men over the ages but its practical importance is attested to by the huge resources of men and material thrown into this type of work.

He did his post-doctoral research at the University of Pennsylvania before joining Stanford University. degree magna cum laude in 1935 at the age of 20 and was awarded the Kenyon Prize in Mathematics and Physics. D.

Robert Hofstadter (February 5 1915 – November 17 1990) was an American physicist. ".